User: What did scientists predict the big bang should have left?
radiation, hydrogen, and helium
radiation, helium, and redshift
redshift, hydrogen, and helium
dust, gases, and particles

User: The discovery of a very early form of helium supports the big bang theory because _____.
helium was one of the first elements to be formed after the big bang
helium is abundant in about 75% of the universe
helium was one of the last elements formed after the big bang
helium was part of the "fireball" that exploded

Weegy: Helium is abundant in about 75% of the universe.MrG|Points 2464|

User: The theory says that the big bang produced the chemical elements hydrogen and helium. What evidence supports this?
You find an abundance of both hydrogen and helium in all matter.
The composition of stars is mostly hydrogen.
Astronomers found primordial gases with the expected ratio of helium to hydrogen.
Primordial hydrogen gas was found and there is an abundance of both of these elements.

Weegy: The answer is "Astronomers found primordial gases with the expected ratio of helium to hydrogen". bonaxle|Points 750|

User: How was CMB radiation first discovered?
Penzias and Wilson were looking for it using a radio receiver.
A radio receiver accidentally picked up its energy.
Scientists saw it through a high tech telescope.
A mission of the COBE satellite found it.

Weegy: It was first found accidentally by Arno Penzias and Robert Woodrow Wilson as they experimented with the Holmdel Horn Antenna. icebelmonte|Points 140|

User: Hubble's expansion law states _____.
the distance of a galaxy is proportional to its recessional speed
the universe is expanding
galaxies and stars are making a redshift
the distance of a galaxy divided by its recessional speed determines its redshift

Weegy: Hubble's expansion law states the universe is expanding galaxies and stars are making a red shift .Expert answered|wisbest|Points 1710|